Dumping-car.



No'. 820,020.v PATENTED MAYAB, 1000.`

T. H. STAGQG.

DUMPING CAR.

APPLICATION FILED 1011.3, 1900.

. 2 SHEETS-SHEET l.

Fig, 2

7km J( /IW /NVENTOH Amm/vn T. H. snm-G.l Dun/PING GAR.

APPLIGATION FILED JAN. 3, 1906.

2 SHEETS-SHEET 2.

WITNESSES.-

l JNVENTOR.

PATENTED MAY 8, 1906.

struction.

'nrrn starring anni onion.'

THOMAS H. STAGG, OF COLUMBUS, OHIO, ASSIGNOR TO THE KILBOUR-NE AND JACOBS MANUFACTURING COMPANY, OF COLUMBUS, OHIO.

numerals-@ARQ ,Patented May 8, 1906.

To @Z whom, it ntay con/cern:

Be it known that I, THOMAS H. STAGG, a

citizen of the United States, residing at Co-.

lumbus, in the county of Franklin and State of Ohio, have invented certain new and useful. Improvements in Dumping-Cars, of which the following is a s ecification.

My invention re ates to a dumping-car, es

pecially to a car which is pivoted and adapted to dump at one or both sides.

It comprises'improvements in the means for operating the swinging side doors, in rendering their locking and unlocking positive, and in supporting the mechanism which controls lthe operation ofthe swinging door upon the truck or bed.

It also consists in providing an improved bracing construction for the ends of the carl whereby the strain necessarily incident to the manipulationof the heavy swinging side door is removed from the 'Wooden structure and -borne entirely It also consists in pivoting the .swinging doors at oneside of the top thereof, so that the weight of the door maintains it normally improved device for -in- Y suring the locking thereof.

. fully setforth,`

lt consists, further, in the -construction and arrangement of parts hereinafter more In the accompanying drawings, Figure 1 is a perspective view of the end and one side of m improved dumping-car. Fig. 2 shows the car in dumping position, illustrating the operation ofthe swinging side door, (1.) f Fig..

3 shows a modiiication ofthe bracing construction.

Referring to lthe drawings, in which the same characters of rference indicate likeparts throughout, 1A is theebodyof the car, mounted longitudinally upon the central sill 2, which is plvoted to swin vertically in the arc of a circle upon the arc "-'braces 3,.'4Pand 5 at the points 6 7 8. v Secured. tothe truck, atthe corners thereof, as shown at A9 and 10, are

chains'lli, which at their upper ends are se cured to the bed of the car. When vin normal position, the car is prevented from dump'-A ing by the chain connection between'the bed and the truck; but when `it 'is desired to dump the car the chains on one side thereof are released, as appears in Fig. 2 ,permitting the carto be dumped toward the opposite by a metal-bracing con;

` -strap on'the lower side is depressed parallel lcured thereto and passing over the top and 'being bent toward the body of -thi"J car, as

shown at 1 5,- and formed so as to be pivoted,

at 18 to the stamped-steel plate. 19. Between the ends of the fiat bar 17 there is pivoted at 20 the vertical barv21, which at its lowerend is pivotally attached to the outer end of the strap 22, which at its inner end is bent downwardly and pivoted at 23 to the arch-brace 3. This shape of the strap 22 pere mits of greater freedom of action, and, as

shown in Fig. 2, when'the car is dumped the with the sides of the Aarch-brace, whereas the strap on the other side is elevated, so as to form a right angle approxi-mately with the other side of thearch-brace. The strap at its outer end is turned back upon itself, thereby form-ing a closed end throu h which the upright barpasses and is pivote This construction provides greater strength and greater freedom of action than would otherwise be obtained. To the end of the car-bed is attached a cleat orV guide 24 to limit the lat- The door is provided at each end with a straphinge 14, strongly seasappears at 16, to the fiat metal bar pivoted eral movement of thel upright bar 2121s the j car-bed is dumped or made to resume its normal position. This action is clearly illus trated in Fig. 2.

The advantages of a swinging door forming the side of the cai" are many, the chief one .belng that as soon as it is released the free end may swing outwardly, and the material sliding outwardly from the car is free to move in a mass ,for the reason that it carries the door with it.l Therefore frozen material and material in very large lumps easily escapes fromthe car, and ordinarily all the material wouldlre dumped by the time the car reached its maximum mclination, whereas if the sides were .raised rigidly the larger material would not only not ass readily, but would also block the Way of, the finer material.

` i' Although 'the advantages of a swinging I oo side door have been recognized andutilized,

yet difficulty has been experienced in providing a door which would automatically lock and unlock :it the proper moment and which would be positive in these operations. 'ot so much difficulty has been experienced with unlocking properly as with the positive locking automatically. My invention provides a swinging door which will never fail yto unlock or to lock automatically upon the proper operation of the car in dumping or returning the saine to normal position. plurality of locks 25 may be provided, secured to the angle-iron 26, which extends beneath the car-bed, as shown in Figi, l have shown only two locks on each side; but it is clear that a sin gie. lock near the middle of the side might be provided, or more than two might be used. rlhe lock is made to extend be- `vond the outer edge'of the car-bed and is provided with thetupwardly-curved 4linger 27, between which and the end of the car the swinging door is securelv held when the car is in normal position. Then the car is in dun'iping position. the door on the elevatedside of the ear remains locked.

The chiel diiii'culty has been experienced in providingr a construction which would cause theV door to lock positively when returned to normal position, and to accomplish this .I pivot the door at the top thereof and upon the inner side, so that the lower side of the door under the influence of gravity will constantly tend to swing inwardly. To limit this inward motion, I provide means interposed between the horizontal bar and the door which prevents the door from swinging'inwai'dly beyond a predetermined point. The door when open should be at a right angle with the horizontal bar, and laccomplish this by providing, preferably, the gus-- set-plate 2%, 'which is secured at '2Q to the bar 17. As appears clearly in 2, when the car is in the dumping position the door bears against the gusset-plate and is held outwardly thereby at an angle of about twelve degrees from a perpendicular. When the car is being returned to its normal position,`

the coaction of the car-bed and the bracing construction supporting the Y door 1s such that. the door assumes a perpendicular position just its lower end passes the eXtrem-l ities of the fingers 27 on the locks 25, and so falls into its locking position. In cars not provided with the gusset-plate the lower side of the door when in open position is vertically above the ends of the car and is very likely to strike thereon when itis attempted to rightthe ear, and thereby prevent thc operation until the. door is seized and swung outwardly and maintained in that position while t'he car is righted. Where the car is large, the door must be very heavy to fulfil the functions of a side of the car and great force would be required to swing it outwardly to permit the car to be righted, which I would necessitate the em loyment of addil tional workmen. Not on y is the operation l of the car frequently delayed and made more l difficult where the gusset-plate is not used, l but the sides and ends of the car are frequently damaged and the locks are broken, and in other ways the mani ulatio'n of the car is seriously interfered Witli.

`The car as a rule is more heavily loaded upon the side through which it is to be dumped. When the proper place is reached, the chains on the opposite side are. released, and the car is'automatically dumped. Suppose the side indicated as A be the dumping side desired. When the chains are released, the car automatically tilts, and. the side door 13, through the operation of its si'ipporting constructionabove described, is slightly lifted and maintained in its elevated position, 'i shown in Fig. 2. lt is also inclined outwardly at its lower side away from the carbed and is held in that position by the gusset-plate. The door in this position exerts a greater stress downward upon the horizontal bar 17 than it would if the gussi't-plate were not provided, and through the pivotal conncctlon 18 it exerts a lifting influence. upon the car-bed, whereby the same is returned therefore accomplish two very important results by the use of the. gusset-plate, namely: First, the door in its open position is made to assume an outwardly-inclined position,

is materially increased, and whereby the car is automatically righted, and, second, the door ,when the car is returning to its normal position under the influence of gravity alone engages the gusset-plate and is so guided thereby as to be absolutely prevented from striking the car vparts and is surely returned to proper position to be locked to the carbed. The advantages of having a c ar to opcrate automatically both in dumping and 1n righting and in which the. operation of the door is automatic and free from the objectionable features above pointed 'out and in which the locking is positive an( ertain are very great, and my means for producing such results constitutes a distinct advance in the dumping-car art.

In dump-cars that have side doors there is great-stress upon the wooden structure of the end of the car, so that intime the end becomes much weakened by the splitting of the loosening of the supports for the doors. I avoid this injurious effect upon the wooden structure of the ends b v the metallic construction in which the plate 19 is secured at the middle of the upper side of the end of the car. At either lside of this plate there is pivotally attached the metal bars 17, to the outer extremity of which the door is hingedor pivi oted. When the door is in its normal closed whereby the stress tending to right the. carto its normal position automatically. I.

TOO

V wooden structure and by the consequent y I cured only to the wooden structure then the position, there is very little lateral stress upon through the bar 17 and the plate 19-to thiecorresponding bar on the other side and to the door through the pivotal: connection. I therefore provide for the transmission of the outward stress upon the doors across the intervening metallic structure, `so that the stress is sustained in the samemanner as if the doors were connected at the tops-thereof by a rigid metallic structure, thereby relieving the wooden structure of the end of the car from all stress. When the car is dumped and the door is held in the elevated position, it is seen that a severe stress is placed upon the bar 17 and through it upon the plate 19,

the stress being not only lateral, but also vertical. The plate 19 could sustain the lateral stress without transmitting Iany strain to the wooden structure; but if this plate were seinjurious effect of the vertical stress would ultimately besustained'thereby, to the consequent injury of said wooden structure.

avoid this objection, I provide the triangular bracing construction shown at 30, which is attached upon its upper end to the stamped steel plate 19, as' shown rat 31, and at its lower*VV end at 32 to the sill 2 by a bolt passing therethrough.. It is clear that the vertical stress. would be transmitted through the plate and the bracing construction and ultimately be sustained by the heavy sill pa'ssing beneath the car T he downward stress exerted. by the weight of the door when the car is in its dumping position is tranunitted through the medium of the bar 21 vand the strap 22 to the metallic bracingearch, as clearly appears in Fig. 2.

It is applarent from the foregoing description and t e drawings that I provi e a bracing construction for the ends of the car,

whereby the wooden structure thereof is entirely relieved from the lateral and vertical strains due to the operation of the car, and the whole stress, is sustained by a metallic construction. so'united that the stress ulti mately falls upon the' foundation parts thereof. Consequently my construction provides a more durable car, one less subject to injuries and breaks, 'and consequently one which will less often need inspection and repair, all of j which are extremely desirable features in car construction. It is also apparent that by "means of my lconstruction I provide a door which is automatically unlocked, ,which -is pivoted to swing outwardly, and thereby give A 'l egress .to the load in a mass,- which issecurely.

held in an open position when the car is dumped,I and Whicn by gravity is held inengagement with the gusset-plate in the-proper position to lock .positively whenever the car is returned toits normal osition. Further, on account of the use o the metallic archbraces and the .pivotingof the car-bed cen trallyy along its bottom thereto, andthe 'provision for -controlling the operation of the 'd.oors,a car is pnoduced .Which'is automatic iniS Operation of dumping and resuming its normal position. d l

Modifications may structionherein shown and described, andv I desire -to claim all such as are'within the' spirit of my invention. For instance, the' strap 22 may be pivoted to the central sill '2 or the plate through which .said sill is pivotedA upon the arch-brace, as appears in Fig. 3, and probe made vin theconf duce the' same results as by pivoting it to the arch-brace. Other chan es of arrangement may obviously be made a so. However, by such experiment it has been determined that approximately the arrangement of partsl shown in the drawings will produce the best results.

swing inwardly, means for maintaining said door `in elevated position w en the car is dumped, in combination wit a member positioned between said door and said means, which member is adapted to prevent the inward swing of said door beyond a predetermined point, said door enga g with said member by gravity alone an being free to swing outwardly.

2. In a` side-dumping` car, a laterally-ex-- tending bar, a door pivoted at its outer side to said bar, a plate interposed between said bar and said door to'limlt the inward swing of said door, said door being adapted to engage .against said plate through. "ravity alone and being free to swing outward y, in combination with means to maintain said door in an elevated position when said car is dumped.

3. In aside-dumping car a side door, a substantially horizontal bar mounted pivotally from which said door is pivotally suspended and arranged to tend tov swing inwardly,

means adapted to maintain the door in elevated position when the 'car is dumped, -a

rigid lock for said door on the bottom of the bed of said can, a member secured to said horizontal baragainst which said door engages by gravity alone, whereby said door is IOO tac/hed to said vertical bar, a side door pvot- -seid locking member when the eer-bedA is really suspended Jfrom the outer end of said turned to its normal position. 'Io horizontal ber and adapted to swin freely In testimony whereof I ax my signature thereon, a rigid locking member on t e botin the presence-of two witnesses.

tom of said .fear-bed, a member carried ,by THOMAS H. STAGG.

saiid horzontaglibar with which said door enyWitnesses: v gages through gravity whereby said' door is 'l FRED W. HUBBARD, caused to fall into locking engagement with GEO. W. RIGHTMIRE. 

